Belying a superficial demeanor with a propensity to giggle, Columbine was actually very intelligent, possessed a remarkable sense of strategy, and was very skilled at negotiations, especially with Chibb, the reluctant spy. A mouse with a great heart, Columbine even extended her compassion to her enemies and deplored their living conditions. She also had great talents for healing and was a dedicated nurse. A wonderful cook and very pretty, Columbine was the ideal heartthrob for Gonff the Mousethief. She, in turn, was immediately taken by his roguish charm.

After freeing Mossflower she lived at Redwall Abbey, where Columbine and Gonff had a son, Gonff II, who inherited his father's thieving abilities.

Once, her husband stole the jewels of the Great Doomwyte Idol and offered them to her, which she refused as the jewels had seen many evil deeds and told Gonff to hide them believing they would bring ill fortune.